Move guid generation from chrome/common/ to base/.

It will be needed in webkit/dom_storage/.

BUG=NONE
TEST=Existing tests.


Review URL: https://chromiumcodereview.appspot.com/10540003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@142142 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 42 insertions, 0 deletions

diff --git a/base/guid_unittest.cc b/base/guid_unittest.cc
new file mode 100644
index 0000000..18c04a9
--- /dev/null
+++ b/base/guid_unittest.cc
@@ -0,0 +1,42 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "base/guid.h"
+
+#include <limits>
+
+#include "testing/gtest/include/gtest/gtest.h"
+
+#if defined(OS_POSIX)
+TEST(GUIDTest, GUIDGeneratesAllZeroes) {
+  uint64 bytes[] = { 0, 0 };
+  std::string clientid = base::RandomDataToGUIDString(bytes);
+  EXPECT_EQ("00000000-0000-0000-0000-000000000000", clientid);
+}
+
+TEST(GUIDTest, GUIDGeneratesCorrectly) {
+  uint64 bytes[] = { 0x0123456789ABCDEFULL, 0xFEDCBA9876543210ULL };
+  std::string clientid = base::RandomDataToGUIDString(bytes);
+  EXPECT_EQ("01234567-89AB-CDEF-FEDC-BA9876543210", clientid);
+}
+#endif
+
+TEST(GUIDTest, GUIDCorrectlyFormatted) {
+  const int kIterations = 10;
+  for (int it = 0; it < kIterations; ++it) {
+    std::string guid = base::GenerateGUID();
+    EXPECT_TRUE(base::IsValidGUID(guid));
+  }
+}
+
+TEST(GUIDTest, GUIDBasicUniqueness) {
+  const int kIterations = 10;
+  for (int it = 0; it < kIterations; ++it) {
+    std::string guid1 = base::GenerateGUID();
+    std::string guid2 = base::GenerateGUID();
+    EXPECT_EQ(36U, guid1.length());
+    EXPECT_EQ(36U, guid2.length());
+    EXPECT_NE(guid1, guid2);
+  }
+}